Core for aluminum sheet
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United States of America Patent
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N/A
Issued Date -
Nov 24, 2005
app pub date -
Jul 29, 2004
filing date -
May 19, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A core for winding metal sheet thereon to provide the sheet metal free of lap marks upon unwinding, the core having a generally cylindrical configuration and having an outside surface, said outside surface having a wedge-shaped notch formed generally transverse to winding direction of the core, the notch having a stepped end and a tapered end disposed opposite the stepped end, the stepped end extending from the surface to a bottom, the stepped end having a tapered end extending from the bottom of stepped end to the outside surface of said core to provide a transition zone.
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